export default (function (option, Dayjs, dayjs) {
  dayjs.updateLocale = function (locale, customConfig) {
    var localeList = dayjs.Ls
    var localeConfig = localeList[locale]
    if (!localeConfig) return
    var customConfigKeys = customConfig ? Object.keys(customConfig) : []
    customConfigKeys.forEach(function (c) {
      localeConfig[c] = customConfig[c]
    })
    return localeConfig // eslint-disable-line consistent-return
  }
})
